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Dorman 949-556 Air Spring to Coil Spring Conversion Kit - Front or Rear
Reliable Air Spring to Coil Spring Conversion Kit for GM Luxury Sedans
The Dorman 949-556 Air Spring to Coil Spring Conversion Kit offers a durable suspension upgrade for select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed to replace air springs with standard steel coil springs, this kit provides a straightforward solution for restoring suspension performance on vehicles like the Buick LeSabre and Cadillac DeVille.
- Includes 2 front coilover struts, 2 rear struts, and 2 steel compression springs
- Standard suspension grade components for consistent ride quality
- Black steel springs with closed ends for durability and noise reduction
- Rubber bushings in black for reliable vibration dampening
- Compatible with Buick 88, 98, LeSabre, Pontiac Bonneville, Oldsmobile Delta 88, Cadillac DeVille, and Fleetwood
Durable Components Built for Suspension Stability
This conversion kit features steel compression springs finished in black, engineered with closed ends on both sides to minimize spring noise and enhance longevity. The rubber bushings provide effective vibration isolation, contributing to a smoother ride. The standard suspension grade ensures the kit meets typical driving demands without compromising vehicle handling. The included coilover struts replace air springs, simplifying maintenance and improving reliability for older GM luxury sedans.
Compatible Vehicles and Part Number Details
The Dorman 949-556 kit is specifically designed for air spring to coil spring conversion on Buick 88 and 98 models, Cadillac DeVille and Fleetwood, Oldsmobile Delta 88, Pontiac Bonneville, and Buick LeSabre. Using the correct part number 949-556 ensures proper fitment and performance for these vehicles, making it a practical choice for owners seeking to replace failing air suspension components with a standard coil spring setup.
Common Suspension Issues Addressed by This Kit
- Air spring failure causing uneven ride height or sagging
- Leaks or damage in air suspension components
- Costly air compressor or air line repairs
- Reduced suspension reliability due to aging air springs
- Desire to simplify suspension maintenance with coil springs
Installation Notes and Tips
Installation of the Dorman 949-556 kit requires removal of the existing air springs and struts. It is recommended to have suspension components inspected for wear before installation. Proper torque specifications should be followed when mounting coil springs and struts. Alignment is advised after installation to ensure optimal handling and tire wear.
Quality Assurance and Warranty Information
Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 949-556 conversion kit is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship. This ensures confidence in the durability and performance of the suspension upgrade.
| Brand | Dorman |
| Part Number | 949-556 |
| Bushing Color | Black |
| Spring Material | Steel |
| Suspension Grade Type | Standard |
| Spring Color | Black |
| End 1 Spring Type | Closed |
| End 2 Spring Type | Closed |
| Bushing Material | Rubber |
| Spring Type | Compression |
| Package Contents | 2 front coilover struts; 2 rear struts; 2 springs |
This part fits 92 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1999 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1999 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1999 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1999 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1999 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1999 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1998 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1998 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1998 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1998 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1998 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1998 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1997 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1997 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1997 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1997 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1997 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1997 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1996 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1996 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1996 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1996 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1996 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1996 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1996 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1996 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1996 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1996 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1995 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1995 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1995 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1995 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1995 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1995 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1995 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1995 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1995 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1995 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1994 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1994 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1994 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1994 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1994 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1994 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1994 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1994 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1994 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1994 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1993 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1993 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1993 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1993 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1993 | Cadillac | DeVille | Front | Four Wheel Kit | |
| 1993 | Cadillac | DeVille | Rear | Four Wheel Kit | |
| 1993 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1993 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1993 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1993 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1993 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1993 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1992 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1992 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1992 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1992 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1992 | Cadillac | DeVille | Front | Four Wheel Kit | |
| 1992 | Cadillac | DeVille | Rear | Four Wheel Kit | |
| 1992 | Cadillac | Fleetwood | FWD | Front | Four Wheel Kit |
| 1992 | Cadillac | Fleetwood | FWD | Rear | Four Wheel Kit |
| 1992 | Oldsmobile | 88 | Front | Four Wheel Kit | |
| 1992 | Oldsmobile | 88 | Rear | Four Wheel Kit | |
| 1992 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1992 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1992 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1992 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1991 | Buick | LeSabre | Front | Four Wheel Kit | |
| 1991 | Buick | LeSabre | Rear | Four Wheel Kit | |
| 1991 | Buick | Park Avenue | Front | Four Wheel Kit | |
| 1991 | Buick | Park Avenue | Rear | Four Wheel Kit | |
| 1991 | Cadillac | DeVille | Front | Four Wheel Kit | |
| 1991 | Cadillac | DeVille | Rear | Four Wheel Kit | |
| 1991 | Cadillac | Fleetwood | FWD | Front | Four Wheel Kit |
| 1991 | Cadillac | Fleetwood | FWD | Rear | Four Wheel Kit |
| 1991 | Oldsmobile | 98 | Front | Four Wheel Kit | |
| 1991 | Oldsmobile | 98 | Rear | Four Wheel Kit | |
| 1991 | Oldsmobile | Delta 88 | Front | Four Wheel Kit | |
| 1991 | Oldsmobile | Delta 88 | Rear | Four Wheel Kit | |
| 1991 | Pontiac | Bonneville | Front | Four Wheel Kit | |
| 1991 | Pontiac | Bonneville | Rear | Four Wheel Kit | |
| 1990 | Cadillac | Fleetwood | FWD | Front | Four Wheel Kit |
| 1990 | Cadillac | Fleetwood | FWD | Rear | Four Wheel Kit |
| 1990 | Oldsmobile | Delta 88 | Front | Four Wheel Kit | |
| 1990 | Oldsmobile | Delta 88 | Rear | Four Wheel Kit |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.